A rectangular prism is a three-dimensional cuboid figure. In the same way that a triangular prism brings three connected lines to life in the real world, a rectangular prism takes the length and ...

The area of the combined rectangular faces is 7 × 12 = 84 cm². The area of the triangular faces is 12 cm². The areas of the faces are summed, 84 + 12 = 96. The total surface area of the prism ...